"An important milestone in the Polaris missile program was inadvertently achieved at Nobska [Project Nobska]. In the course of discussing how a nuclear warhead could be made small enough for the Mark 45 torpedo, Edward Teller of Lawrence Livermore National Laboratory started a discussion on the possibility of developing a physically small one-megaton nuclear warhead for the Polaris missile. His counterpart in the discussion, J. Carson Mark of Los Alamos National Laboratory, at first insisted it could not be done. However, Dr. Mark eventually stated that a half-megaton warhead of small enough size could be developed. This yield, roughly thirty times that of the Hiroshima bomb, was enough . . . and Navy strategic missile development shifted from Jupiter to Polaris by the end of the year. Within five years regular Polaris deterrent patrols were in progress."

We should consider ourselves fortunate that American physicists were able to develop a "small" thermonuclear warhead?